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Why does one need to study about soil and what is its importance?
You would be aware that, from the dawn of agriculture, cultivators were attracted to fertile soils of river valleys. Early Greek and Roman writers have described farming systems that involved leguminous plants, use of ashes and sulphur as soil su pplements. German chemist Justus von Liebig (1840) found that crop yields were increased by adding minerals to soils. He proposed that the mineral elements in the soil added as manures and fertilizers are essential for plant growth. According to him certain factors are essential for plant growth and if any one of these factors is limiting (controlling) plant production would be reduced. Soils are studied today to ascertain which of these factors is below desired level and how its limitation to plant growt h can be removed.
Simple interrupted technique of Suturing The simple loop is the most commonly used technique in dentistry and is routinely used to adapt tension free, mobile surgical flaps.
main external morphological feature that differentiates platyhelminthes from nematodes
S t r a tegic and tactic control of parasitic diseases The reduced performance of the animals in terms of decreased milk yield, draught power, breeding performance, poor bo
Comparing to cyclostomes (primitive vertebrates) what are the main novelties presented by fishes? Compared to cyclostomes, evolutionary novelties shown by fishes are: pectoral
Anther is the top of a stamen's filament; divided into pollen sacs in which the pollen grains are form.
Where do the photochemical and the chemical stages of photosynthesis occur? The photochemical stage of the photosynthesis process happens mainly on the thylakoids (the green pa
What are fossil fuels? Fossil fuels, like oil, gas and coal, form when organic material is preserved from the complete action of decomposers, generally buried deep and under pr
why the excretory organ of prawn is called ''green gland''?
FUNCTION In animal cells centrioles play important role in initiation of cell division by arranging spindle fibres between two poles of cell.Thus they play a role in division o
It is a category of viruses having RNA genome and reverse transcriptase enzyme within virus cuspid.
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